Part A
ADN2830ACPZ32
Công ty Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 5333 PCS
- Package
- WFQFN-32
- Series
- PMIC - Laser Drivers
Replacement verdict
Not a drop-in replacement
The ADN2830ACPZ32 and ADN2812ACP serve fundamentally different functions within optical communication systems, so neither device can directly substitute for the other. The ADN2830ACPZ32 is a laser diode controller, while the ADN2812ACP is a clock and data recovery IC, resulting in incompatible signal interfaces, supply requirements, and application roles. Designers must treat these parts as non-interchangeable and select the correct device based on the specific system function required.
Different device function
Different signal interface
Different supply requirements
Different application role
Parts at a glance
Part B
ADN2812ACP
Công ty Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 6154 PCS
- Package
- WFQFN-32
- Series
- Clock-Timing - Application Specific
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | ADN2830ACPZ32 | ADN2812ACP | Why it matters |
|---|---|---|---|
| Function | Laser diode bias controller / APC loop | Continuous-rate clock and data recovery (CDR) | These are fundamentally different device types, so they are not functionally substitutable in a design. |
| Data rate / operating frequency | Not a data-rate device (analog bias control loop) | Continuous rate from 12.3 Mb/s to 2.7 Gb/s | The CDR must cover the target line rate; the bias controller has no data-rate specification. |
| Primary output / control signal | Bias current to laser diode (closed-loop APC) | Recovered clock and retimed data outputs | Output type determines what downstream circuitry each part can drive. |
| Supply voltage | 3.3 V nominal | 3.3 V nominal | Supply compatibility affects power rail design; both nominally operate from 3.3 V. |
| Package | 32-lead LFCSP | 32-lead LFCSP | Package footprint affects PCB layout and assembly, though pinout and function differ. |
| Interface / control | Analog setpoint and monitor pins for bias loop | I2C-compatible control interface plus differential I/O | Control interface determines how the host configures and monitors the device. |
| Typical application | Optical transmitter laser bias stabilization | Optical receiver clock/data recovery | Application role clarifies that one serves the transmit path and the other the receive path. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | ADN2830ACPZ32 | ADN2812ACP |
|---|---|---|
| Supplier | - | Rochester Electronics, LLC |
| Part Status | Active | Obsolete |
| PLL | - | Yes |
| Main Purpose | - | SONET/SDH |
| Input | - | CML |
| Output | - | CML |
| Ratio - Input: Output | - | 1:2 |
| Differential - Input: Output | - | Yes/Yes |
| Frequency - Max | - | 2.7GHz |
| Voltage - Supply | 4.5V ~ 5.5V | 3V ~ 3.6V |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
| Mounting Type | - | Surface Mount |
| Type | Laser Diode Controller (Fiber Optic) | - |
| Number of Channels | 1 | - |
| Supply Current | 25 mA | - |
| Current - Bias | 200 mA | - |
Frequently asked questions
Are the ADN2830ACPZ32 and ADN2812ACP functionally interchangeable?
No. The ADN2830ACPZ32 is a laser diode bias controller, while the ADN2812ACP is a continuous-rate clock and data recovery (CDR) IC. They serve different signal-chain functions and are not interchangeable.
What are the primary functions of the ADN2830ACPZ32 and ADN2812ACP?
The ADN2830ACPZ32 provides closed-loop bias current control for laser diodes in optical transmitters. The ADN2812ACP performs clock and data recovery for serial data streams, typically in optical receiver and backplane applications.
Do the ADN2830ACPZ32 and ADN2812ACP use the same package type?
No. The ADN2830ACPZ32 is supplied in a 32-lead LFCSP package, while the ADN2812ACP is supplied in a 32-lead LFCSP package as well, but the two devices have different pin functions and cannot share a PCB footprint without redesign.
Can the ADN2830ACPZ32 and ADN2812ACP operate from the same supply voltage?
Both devices are specified for a 3.3 V nominal supply, but each datasheet defines its own operating range and decoupling requirements. Designers must verify the supply tolerance and sequencing against the respective Analog Devices datasheets.
Are the ADN2830ACPZ32 and ADN2812ACP used in the same optical module role?
No. The ADN2830ACPZ32 is used on the transmit side to control laser bias current, whereas the ADN2812ACP is used on the receive side to recover clock and data. They are complementary rather than equivalent parts.
What data rates does the ADN2812ACP support compared with the ADN2830ACPZ32?
The ADN2812ACP is a continuous-rate CDR supporting serial data rates from 12.3 Mb/s to 2.7 Gb/s. The ADN2830ACPZ32 is a bias controller and is not specified by a data rate; its relevant parameters are bias current range and loop characteristics.
Can the ADN2830ACPZ32 and ADN2812ACP be used together in one design?
Yes. In an optical transceiver, the ADN2830ACPZ32 can control the transmit laser bias while the ADN2812ACP recovers clock and data on the receive path. Each device must be configured per its own datasheet.